Leak reducer for joints between relatively rotatable conduits,申请号US19440533746-传众专利搜索

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发明名称	Leak reducer for joints between relatively rotatable conduits
摘要
申请公布号	US2421939(A)	申请公布日期	1947.06.10
申请号	US19440533746	申请日期	1944.05.02
申请人	VULCAN SOOT BLOWER CORPORATION	发明人	HIBNER DE LOS E.;AREY FRED C.
分类号	F28G3/16	主分类号	F28G3/16
代理机构		代理人
主权项
地址

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